TRAVERSE CITY, Mich. (AP) - Five states asked the U.S. Supreme Court on Wednesday to hear their plea for quicker federal action to prevent Asian carp and other invasive species from moving between the Great Lakes and Mississippi river watersheds.
Michigan Attorney Bill Schuette said he had filed a petition with the nation's highest court to review a ruling by the 7th U.S. Circuit Court of Appeals in Chicago, which in August refused to order the U.S. Army Corps of Engineers to speed up a study of how to block aquatic pathways between the two water systems.
The Corps has promised to complete its study in 2015, but Michigan and four other states in the Great Lakes region - Minnesota, Ohio, Pennsylvania and Wisconsin - say that's too slow.
Large, voracious bighead and silver carp have infested the Mississippi and tributary rivers that are connected by other waterways to Lake Michigan in the Chicago area. If they become established in the lakes, some experts say the Asian invaders could gobble enough plankton to destabilize the food web and damage the region's $7 billion fishing industry.
"Time is running out for the Great Lakes, and we can't afford to wait years before the federal government takes meaningful action," Schuette said.
The Chicago waterways also have been a pathway for other exotic species such as the zebra mussel and round goby, which were brought to the Great Lakes in ballast tanks of oceangoing vessels and have spread to other waters.
The five states are suing the Army Corps and Chicago municipal water district in federal district court over their operation of the waterways. The case has not come to trial. In the meantime, the states requested a court order for interim measures including a faster timetable for the study and installation of block nets in the Little Calumet and Grand Calumet rivers, both of which are linked to the Mississippi drainage basin and flow into Lake Michigan.
Their proposal was rejected by the district and appeals courts.